Solid State Communications最新文献

{"title":"Magnetic response of square Husimi bilayer nanolattice: Monte Carlo simulations","authors":"Z. Fadil ,&nbsp;Chaitany Jayprakash Raorane ,&nbsp;Hussein Sabbah ,&nbsp;A. Samih ,&nbsp;R. El Fdil ,&nbsp;Mohammad Altaf ,&nbsp;Yedluri Anil Kumar ,&nbsp;Seong Cheol Kim ,&nbsp;E. Salmani","doi":"10.1016/j.ssc.2024.115748","DOIUrl":"10.1016/j.ssc.2024.115748","url":null,"abstract":"<div><div>Monte Carlo simulations of the square Husimi bilayer nanolattice reveal that both blocking temperature (<em>t</em>_<em>B</em>) and coercive field (ℎ_<em>C</em>) were influenced by different physical parameters. These insights are crucial for optimizing magnetic devices and managing thermal effects. The study provides valuable guidance for the design of more efficient and stable magnetic systems. Bilayer magnetic ferrimagnetic nanosystems show diverse applications in nanotechnology, leveraging their magnetic properties for significant advancements across various technological fields.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"395 ","pages":"Article 115748"},"PeriodicalIF":2.1,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142664054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Features of current flow in the n-CoFe2O4/n-CdTe heterojunction","authors":"Ivan G. Orletskyi,&nbsp;Ivan P. Koziarskyi,&nbsp;Maya V. Koval,&nbsp;Maria I. Ilashchuk,&nbsp;Eduard V. Maistruk,&nbsp;Dmytro P. Koziarskyi","doi":"10.1016/j.ssc.2024.115749","DOIUrl":"10.1016/j.ssc.2024.115749","url":null,"abstract":"<div><div><em>n</em>-CoFe₂O₄/<em>n</em>-CdTe heterojunctions with a current rectification ratio of 3·10⁵ at voltages |<em>V</em>| = 1.5 V were made by spray pyrolysis of aqueous solutions of cobalt and iron salts on <em>n</em>-CdTe substrates. Based on the analysis of the temperature dependence of <em>I-V</em>-characteristics in the forward voltage range, a change in the mechanisms of current flow in <em>n</em>-CoFe₂O₄/<em>n</em>-CdTe heterojunctions was established from overbarrier at voltages of 3kT<em>/q</em> &lt; <em>V</em> &lt; 0.3 V to tunneling at voltages of 0.4 V &lt; <em>V</em> &lt; 1 V. The role of surface states in the formation of the energy profile of the heterojunction and the participation of energy levels in the band gap of <em>n</em>-CdTe in the formation of the tunnel current have been clarified. The reasons for the occurrence of negative differential resistance at the forward biases of the structure have been clarified. The current at reverse biases in the range −3 V &lt; <em>V</em> &lt; -3kT<em>/q</em> was analyzed. According to the analysis of the <em>C-V</em>-characteristics, an inversion layer was found in the heterojunction and its behavior from voltage was explained.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"395 ","pages":"Article 115749"},"PeriodicalIF":2.1,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142586070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Elastocaloric effect and magnetic properties of rare earth Ce-doped Cu-Al-Mn alloy","authors":"Fengnan Yang,&nbsp;Shulei Zhao,&nbsp;Buyang Ma,&nbsp;Yan Liang,&nbsp;Shuotong Zong,&nbsp;Yan Zhang,&nbsp;Yafei Kuang,&nbsp;Wenfeng Liu,&nbsp;Fenghua Chen","doi":"10.1016/j.ssc.2024.115745","DOIUrl":"10.1016/j.ssc.2024.115745","url":null,"abstract":"<div><div>In this research, the elastocaloric and magnetic properties of Cu₇₀Al_20.5Mn_{9.5-<em>x</em>}Ce_<em>x</em> (<em>x</em> = 0, 0.3, 0.6, 0.9) alloy are systematically studied. The resistance-temperature curve (R-T) revealed that the phase transition temperature range of the alloy is below room temperature (about 230–272 K) and increases as the Ce content increases. In addition, the thermomagnetic curve (M-T) and isothermal magnetization curve (M − H) suggested that the alloy exhibits weak magnetism. The X-ray diffraction pattern shows that the alloy is a single β phase at room temperature. The stress-strain curve shows that with the increase of Ce content, the overall strain of the alloy tends to decrease, indicating that the addition of Ce will increase the compressive modulus of the alloy. The test of elastocaloric properties shows that the maximum adiabatic temperature change of the alloy initially decreases and then increases as the Ce content rises. When the Ce content is 0.3, it exhibits an adiabatic temperature change of 7.4 K under the stress unloading of 500 MPa. The temperature-time cycle test shows that Cu₇₀Al_20.5Mn_9.2Ce_0.3 has good elastocaloric cycle stability.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"395 ","pages":"Article 115745"},"PeriodicalIF":2.1,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electric transport and topological properties of binary heterostructures in topological insulators","authors":"R. Pineda-Medina,&nbsp;Herbert Vinck-Posada,&nbsp;William J. Herrera","doi":"10.1016/j.ssc.2024.115729","DOIUrl":"10.1016/j.ssc.2024.115729","url":null,"abstract":"<div><div>The design of devices with coupled hybrid structures offers an approach to creating synthetic topological materials. This work discusses the topological and transport properties of low-dimensional binary heterostructures of topological and trivial materials. By adjusting the parameters of each component, we control the global topological properties to enhance tunneling and optimize the transmission of the topological edge states (TES). Considering a one-dimensional tight-binding model, we build heterostructures of coupled chains employing Green’s functions (GF) formalism. We determine the topological characteristics of chains and couple them together, applying Dyson’s equation to generate the heterostructure. The intensity and decay length of the TES vary depending on the coupling parameters and the size of each chain. We investigate the topological diagrams phase using the energy bands of the periodic system and calculating the invariant from the Zak phase. Using cross-band condition, we derive analytical functions of the parameter space to get the phase topological diagram, which can be compared with the LDOS maps at zero energy. Finally, we calculate the differential conductance with the Keldysh GF technique to demonstrate the tunneling of the TES at the zero bias voltage and discuss potential design and experimental applications.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"395 ","pages":"Article 115729"},"PeriodicalIF":2.1,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142664053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pd6C32: A pentagonal icositetrahedron molecule","authors":"Ling-Yan Ai ,&nbsp;Hui-Yan Zhao ,&nbsp;Ying Liu ,&nbsp;Su-Ye Yu","doi":"10.1016/j.ssc.2024.115730","DOIUrl":"10.1016/j.ssc.2024.115730","url":null,"abstract":"<div><div>A stable pentagonal icositetrahedron Pd₆C₃₂ with O symmetry has been predicted using ab initio calculations. Stabilities and electronic properties of the Pd₆C₃₂ cage were determined. The calculated vibrational frequencies of Pd₆C₃₂ range from 81.6 cm⁻¹ to 1386.7 cm⁻¹, with no imaginary frequency components, indicating its dynamic stability. When the molecular dynamics simulation temperature reaches 1300 K, the Pd₆C₃₂ molecule can maintain the initial topological structure. The comprehensive examination of the natural bond orbital (NBO) indicates that the C-Pd bond can be characterized as a σ bond formed by two-center two-electron (2c-2e), while the Pd atoms exhibit characteristics associated with d orbitals. The hollow cavity within Pd₆C₃₂ can serve as a suitable host for accommodating various atoms or molecules, thereby highlighting the advantages of investigating embedded fullerenes.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"395 ","pages":"Article 115730"},"PeriodicalIF":2.1,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142555566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interdiffusion in chalcogenide semiconductor superlattice nanostructures","authors":"A. Sipatov ,&nbsp;L. Konotopsky ,&nbsp;E. Moroz ,&nbsp;V. Volobuev","doi":"10.1016/j.ssc.2024.115731","DOIUrl":"10.1016/j.ssc.2024.115731","url":null,"abstract":"<div><div>The diffusion intermixing of layers during annealing of epitaxial superlattice nanostructures based on chalcogenide semiconductors (PbS, PbSe, PbTe, EuS, EuSe, SrS) was studed by X-ray diffraction technique. The interdiffusion coefficients were determined basing on changing of the intensity of near-Bragg reflection satellites in X-ray diffraction pattern. Layer materials in superlattices EuS-PbTe and PbS-PbTe are not intermixed.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"395 ","pages":"Article 115731"},"PeriodicalIF":2.1,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetic and magnetocaloric dynamics in A2BFeO6 double perovskites: Impact of A and B site variations analyzed through Monte Carlo simulation and Ab initio calculations","authors":"M. Bessimou,&nbsp;R. Masrour","doi":"10.1016/j.ssc.2024.115732","DOIUrl":"10.1016/j.ssc.2024.115732","url":null,"abstract":"&lt;div&gt;&lt;div&gt;We investigate the magnetic and magnetocaloric properties of the double perovskites &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mrow&gt;&lt;mi&gt;S&lt;/mi&gt;&lt;mi&gt;r&lt;/mi&gt;&lt;/mrow&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;/msub&gt;&lt;mi&gt;F&lt;/mi&gt;&lt;mi&gt;e&lt;/mi&gt;&lt;mi&gt;O&lt;/mi&gt;&lt;mi&gt;s&lt;/mi&gt;&lt;msub&gt;&lt;mi&gt;O&lt;/mi&gt;&lt;mn&gt;6&lt;/mn&gt;&lt;/msub&gt;&lt;mo&gt;,&lt;/mo&gt;&lt;msub&gt;&lt;mrow&gt;&lt;mspace&gt;&lt;/mspace&gt;&lt;mi&gt;S&lt;/mi&gt;&lt;mi&gt;r&lt;/mi&gt;&lt;/mrow&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;/msub&gt;&lt;mi&gt;F&lt;/mi&gt;&lt;mi&gt;e&lt;/mi&gt;&lt;mi&gt;C&lt;/mi&gt;&lt;mi&gt;o&lt;/mi&gt;&lt;msub&gt;&lt;mi&gt;O&lt;/mi&gt;&lt;mn&gt;6&lt;/mn&gt;&lt;/msub&gt;&lt;msub&gt;&lt;mrow&gt;&lt;mo&gt;,&lt;/mo&gt;&lt;mi&gt;D&lt;/mi&gt;&lt;mi&gt;y&lt;/mi&gt;&lt;/mrow&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;/msub&gt;&lt;mi&gt;F&lt;/mi&gt;&lt;mi&gt;e&lt;/mi&gt;&lt;mi&gt;O&lt;/mi&gt;&lt;mi&gt;s&lt;/mi&gt;&lt;msub&gt;&lt;mi&gt;O&lt;/mi&gt;&lt;mn&gt;6&lt;/mn&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; and &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mrow&gt;&lt;mi&gt;D&lt;/mi&gt;&lt;mi&gt;y&lt;/mi&gt;&lt;/mrow&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;/msub&gt;&lt;mi&gt;F&lt;/mi&gt;&lt;mi&gt;e&lt;/mi&gt;&lt;mi&gt;C&lt;/mi&gt;&lt;mi&gt;o&lt;/mi&gt;&lt;msub&gt;&lt;mi&gt;O&lt;/mi&gt;&lt;mn&gt;6&lt;/mn&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; using a combination of Monte Carlo simulations and Density Functional Theory (&lt;em&gt;DFT&lt;/em&gt;). The exchange couplings were calculated using DFT. &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mrow&gt;&lt;mi&gt;S&lt;/mi&gt;&lt;mi&gt;r&lt;/mi&gt;&lt;/mrow&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;/msub&gt;&lt;mi&gt;F&lt;/mi&gt;&lt;mi&gt;e&lt;/mi&gt;&lt;mi&gt;O&lt;/mi&gt;&lt;mi&gt;s&lt;/mi&gt;&lt;msub&gt;&lt;mi&gt;O&lt;/mi&gt;&lt;mn&gt;6&lt;/mn&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; exhibits antiferromagnetic ordering with two transitions at 50 and 150 K, driven by strong antiferromagnetic exchange interactions between Fe³⁺ and Os⁵⁺ ions. In contrast, &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mrow&gt;&lt;mi&gt;S&lt;/mi&gt;&lt;mi&gt;r&lt;/mi&gt;&lt;/mrow&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;/msub&gt;&lt;mi&gt;F&lt;/mi&gt;&lt;mi&gt;e&lt;/mi&gt;&lt;mi&gt;C&lt;/mi&gt;&lt;mi&gt;o&lt;/mi&gt;&lt;msub&gt;&lt;mi&gt;O&lt;/mi&gt;&lt;mn&gt;6&lt;/mn&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; shows ferrimagnetic behavior with a single transition around 75 K, attributed to ferromagnetic coupling between Co&lt;sup&gt;2&lt;/sup&gt;⁺ and Fe³⁺ ions. For the rare-earth-containing compounds, &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mrow&gt;&lt;mi&gt;D&lt;/mi&gt;&lt;mi&gt;y&lt;/mi&gt;&lt;/mrow&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;/msub&gt;&lt;mi&gt;F&lt;/mi&gt;&lt;mi&gt;e&lt;/mi&gt;&lt;mi&gt;O&lt;/mi&gt;&lt;mi&gt;s&lt;/mi&gt;&lt;msub&gt;&lt;mi&gt;O&lt;/mi&gt;&lt;mn&gt;6&lt;/mn&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; demonstrates complex magnetic ordering with transitions at approximately 20 K and 140 K, influenced by the strong spin-orbit coupling of Dy³⁺ ions. Similarly, &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mrow&gt;&lt;mi&gt;D&lt;/mi&gt;&lt;mi&gt;y&lt;/mi&gt;&lt;/mrow&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;/msub&gt;&lt;mi&gt;F&lt;/mi&gt;&lt;mi&gt;e&lt;/mi&gt;&lt;mi&gt;C&lt;/mi&gt;&lt;mi&gt;o&lt;/mi&gt;&lt;msub&gt;&lt;mi&gt;O&lt;/mi&gt;&lt;mn&gt;6&lt;/mn&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; exhibits two transitions at around 60 K and 170 K, reflecting a mix of ferromagnetic and antiferromagnetic interactions involving Dy³⁺, Co&lt;sup&gt;2&lt;/sup&gt;⁺, and Fe³⁺ ions. &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mrow&gt;&lt;mi&gt;S&lt;/mi&gt;&lt;mi&gt;r&lt;/mi&gt;&lt;/mrow&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;/msub&gt;&lt;mi&gt;F&lt;/mi&gt;&lt;mi&gt;e&lt;/mi&gt;&lt;mi&gt;O&lt;/mi&gt;&lt;mi&gt;s&lt;/mi&gt;&lt;msub&gt;&lt;mi&gt;O&lt;/mi&gt;&lt;mn&gt;6&lt;/mn&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; shows a peak magnetic entropy change &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mo&gt;Δ&lt;/mo&gt;&lt;msub&gt;&lt;mi&gt;S&lt;/mi&gt;&lt;mi&gt;m&lt;/mi&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; of 0.22 J/kg.K under a 5 T field at 50 K, while &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mrow&gt;&lt;mi&gt;S&lt;/mi&gt;&lt;mi&gt;r&lt;/mi&gt;&lt;/mrow&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;/msub&gt;&lt;mi&gt;F&lt;/mi&gt;&lt;mi&gt;e&lt;/mi&gt;&lt;mi&gt;C&lt;/mi&gt;&lt;mi&gt;o&lt;/mi&gt;&lt;msub&gt;&lt;mi&gt;O&lt;/mi&gt;&lt;mn&gt;6&lt;/mn&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; exhibits a broader peak at 75 K with &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mo&gt;Δ&lt;/mo&gt;&lt;msub&gt;&lt;mi&gt;S&lt;/mi&gt;&lt;mi&gt;m&lt;/mi&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; of 1.5 J/kg·K. &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mrow&gt;&lt;mspace&gt;&lt;/mspace&gt;&lt;mi&gt;D&lt;/mi&gt;&lt;mi&gt;y&lt;/mi&gt;&lt;/mrow&gt;&lt;mn&gt;2&lt;/mn&gt;&lt;/msub&gt;&lt;mi&gt;F&lt;/mi&gt;&lt;mi&gt;e&lt;/mi&gt;&lt;mi&gt;O&lt;/mi&gt;&lt;mi&gt;s","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"395 ","pages":"Article 115732"},"PeriodicalIF":2.1,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142586071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strong stretching bond force constants and Young's moduli in boron nitride nanotubes","authors":"Gustavo Dominguez-Rodríguez ,&nbsp;Gabriel Canto ,&nbsp;César Cab ,&nbsp;Jorge Medina ,&nbsp;Jorge A. Tapia","doi":"10.1016/j.ssc.2024.115734","DOIUrl":"10.1016/j.ssc.2024.115734","url":null,"abstract":"<div><div>High values of stretching bond force constants (<em>k</em>_<em>r</em>) and Young's moduli (<span><math><mrow><mi>Y</mi></mrow></math></span>) for boron nitride nanotubes (BNNTs) and carbon nanotubes (CNTs) were determined and compared using density functional theory, focusing on armchair chirality (n,n) within a diameter range of 4.4–13.9 Å. The influence of structural configuration on <em>k</em>_<em>r</em> and <span><math><mrow><mi>Y</mi></mrow></math></span> calculations is discussed, implementing the generalized gradient approximation to clarify the effects and differences in chemical bonding and structural rigidity within BNNTs of different diameters. The results show an increasing trend in the <em>k</em>_<em>r</em> and <span><math><mrow><mi>Y</mi></mrow></math></span> values as the BNNT diameter increases, with <em>k</em>_<em>r</em> magnitudes resembling those reported for CNTs. The theoretical calculations suggest that BNNTs could be an excellent alternative for a broad spectrum of CNT applications, particularly in fields such as energy, electronics, medicine, environmental science, and composite materials, where mechanical properties are crucial.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"395 ","pages":"Article 115734"},"PeriodicalIF":2.1,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142528118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On the performance and thermal stability of solar cell based on CIGS-Sb2S3 combination with >35 % power conversion efficiency","authors":"Sweety Chauhan ,&nbsp;Anuj K. Sharma ,&nbsp;Nitin Singh Singha","doi":"10.1016/j.ssc.2024.115736","DOIUrl":"10.1016/j.ssc.2024.115736","url":null,"abstract":"<div><div>This study presents a solar cell design utilizing a CIGS (copper-indium-gallium-selenide) absorber and Sb₂S₃ (antimony trisulfide) back surface field (BSF) layers, targeting high photovoltaic (PV) performance with an emphasis on minimum possible effect of ambient temperature. We simulated a solar cell design consisting of zinc oxide, surface defect layer, zinc sulfide, CIGS layer, and an Sb₂S₃ layer using SCAPS-1D software. Our findings indicate that 200 nm Sb₂S₃ layer and a 1600 nm CIGS layer is the preferred combination for achieving high PV performance and appropriate J-V characteristics of the proposed solar cell. For this design, the achieved values of V_OC (open circuit voltage), J_SC (short circuit current density), PCE (power conversion efficiency), and fill factor (FF) are 1.069V, 42.08 mA/cm², 35.94 %, and 80.31 %, respectively. The PV performance of the proposed solar cell is substantially better than the solar cell design without BSF layer as well as recently reported (2023-24) solar cell designs. This study further examines the impact of elevated ambient temperatures (295–360 K) on the PV performance. Our simulation results show that operating the proposed solar cell at moderately elevated temperatures is not a significant issue owing to small power temperature coefficient (−0.034 % per K), which is comparable to that of commercially available solar cells. These findings are expected to contribute to the ongoing advancement of PV solar cells, aiming for higher PCE and improved stability, including thermal stability. Proposed solar cell with low PTC and high PCE can be suitable for space applications where temperature fluctuation is severe, as well as in tropical areas.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"395 ","pages":"Article 115736"},"PeriodicalIF":2.1,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electronic structure, phonons, and born effective charges in CuLaO2: A first-principles study","authors":"Mohamed Khedidji ,&nbsp;Houssyen Yousfi ,&nbsp;Faouzi Saib ,&nbsp;Mohamed Trari","doi":"10.1016/j.ssc.2024.115733","DOIUrl":"10.1016/j.ssc.2024.115733","url":null,"abstract":"<div><div>This study presents a first-principles investigation of the structural, electronic, dielectric, and dynamical properties of CuLaO₂ in its rhombohedral delafossite phase using density functional theory. Our analysis reveals that CuLaO₂ is a stable indirect band gap semiconductor with a 2.35 eV band gap, showing significant Cu (3d, 4s) and O (2p) orbital hybridization. Phonon dispersion calculations confirm dynamical stability with no imaginary frequencies, and the material exhibits anisotropic dielectric behavior due to mixed ionic-covalent bonding. These findings suggest that CuLaO₂ has potential applications in optoelectronics and energy technologies, providing a theoretical basis for future experimental validation.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"394 ","pages":"Article 115733"},"PeriodicalIF":2.1,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142536193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}